Here’s how they work: there’s a cup into which you fit a half lemon or lime, and two long handles which push together with a lever action, pressing a reamer down on the fruit and literally turning it inside out, extracting every bit of juice, while leaving seeds and pulp behind.

These gizmos are sold in color-coded sizes (i.e., a small green ones for limes, larger yellow for lemons), but chowhounds overwhelmingly agree that the yellow version is all that’s needed for both fruits (indeed, some limes are too big to fit the lime-sized squeezer).

They’re sold at many cookware and housewares stores for around $11-13. Mexican grocers often sell less-expensive, non-enameled versions.